Until a few years ago, there was an unspoken belief that the government would prop up universities in difficult financial situations and wouldn't allow them to fail for the sake of their students.
When Jo Johnson introduced the reforms to make it easier for new providers to enter the market, he made it very clear that the government would no longer do this, that there would be "market exit" and that in the government's eyes this was a good thing because a functioning HE market would drive up standards.
So universities don't have that safety net any more and they have to compete against each other more than ever. That means doing anything they can to attract students and spending money they don't necessarily have in the sometimes vain hope that it will pay off and, inevitably, for some of them, it won't. Most universities will end up making cuts to make their financial position more secure but they will survive, but there's maybe a handful who will be in real trouble.
Personally, as PPs have said, I would be less worried about universities failing and more about courses closing.